#pragma once

#include "CoreMinimal.h"
#include "Subsystems/EngineSubsystem.h"
#include "hidapi.h"


#include "SkyPortalSubsystem.generated.h"

#pragma region Definitions

UENUM(BlueprintType)
enum EPortalSide {
	LEFT UMETA(DisplayName = "Left side"),
	RIGHT UMETA(DisplayName = "Right side"),
	BOTH UMETA(DisplayName = "Both left and right"),
	TRAP UMETA(DisplayName = "Trap")
};

UENUM(BlueprintType)
enum EPortalCommand {
	A UMETA(DisplayName = "Activate"),
	C UMETA(DisplayName = "Color"),
	J UMETA(DisplayName = "Advanced color"),
	L UMETA(DisplayName = "Trap color"),
	M UMETA(DisplayName = "Music"),
	Q UMETA(DisplayName = "Query"),
	R UMETA(DisplayName = "Ready"),
	S UMETA(DisplayName = "Status")
};



/* Macro constants Definitions */
#define rw_buf_size  0x21
#define TIMEOUT 30000
#define DEBUG true

DECLARE_LOG_CATEGORY_EXTERN(LogHIDApi, Log, All);
DECLARE_LOG_CATEGORY_EXTERN(LogSkyportalIO, Log, All);

//// Delegates
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnSkylanderAddedDelegate, int32, SkylanderID, int32, Index);
DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnSkylanderRemovedDelegate, int32, SkylanderID, int32, Index);

#pragma endregion


/* Handle all the portal I/O
*
*
*
*/
UCLASS(MinimalAPI)
class USkyPortalSubsystem : public UEngineSubsystem
{
	GENERATED_BODY()

	//Portal ref used in the subsystem
	hid_device* PortalDevice;

public:
	// Override initialization and deinitialization methods
	virtual void Initialize(FSubsystemCollectionBase& Collection) override;
	virtual void Deinitialize() override;

	/********* Portal Actions *************/

	/* The first function to run, before anything else.
	*  It will re-init and prepare the portal for receiving/sending inputs
	*
	*  return false if portal is not found
	*/
	UFUNCTION(BlueprintCallable, CallInEditor, meta = (Category = "SkyPortal"))
	SKYPORTAL_API bool ConnectPortal();

	/*Send a **Status** command, to see if the portal is ready to receive new commands*/
	UFUNCTION(BlueprintCallable, BlueprintPure, meta = (Category = "SkyPortal|NOT FUNCTIONING"))
	SKYPORTAL_API bool bIsPortalReady();

	UFUNCTION(BlueprintCallable, meta = (Category = "SkyPortal|NOT FUNCTIONING"))
	SKYPORTAL_API void SendPortalCommand(EPortalCommand Command);

	UFUNCTION(BlueprintCallable, meta = (Category = "SkyPortal|NOT FUNCTIONING"))
	SKYPORTAL_API void SendPortalSound(USoundWave* Sound);

	/* Change portal color, ideally should be called just at the start.For gameplay usage, use ChangePortalColorside()*/
	UFUNCTION(BlueprintCallable, CallInEditor, meta = (AutoCreateRefTerm = "Color", Category = "SkyPortal|Cosmetic"))
	SKYPORTAL_API void ChangePortalColor(const FLinearColor& Color = FLinearColor::Green);

	/**
	 * Change the color of the portal, can separate side and even trap ligth
	 * @param	NextColor	New color
	 * @param	PortalSide	The actors to record
	 * @param	BlendTime	Blend between current color and NextColor, in milliseconds
	 */
	UFUNCTION(BlueprintCallable, CallInEditor, meta = (AutoCreateRefTerm = "NextColor", Category = "SkyPortal|Cosmetic"))
	SKYPORTAL_API void ChangePortalColorside(const FLinearColor& NextColor = FLinearColor::Green, const EPortalSide PortalSide = EPortalSide::BOTH, const float BlendTime = 500.0f);


	// Blueprint-assignable event property
	UPROPERTY(BlueprintAssignable, Category = "SkyPortal|Skylander")
	FOnSkylanderAddedDelegate OnSkylanderAdded;

	// Blueprint-assignable event property
	UPROPERTY(BlueprintAssignable, Category = "SkyPortal|Skylander")
	FOnSkylanderRemovedDelegate OnSkylanderRemoved;


	UPROPERTY(VisibleAnywhere, BlueprintReadOnly)
	bool bPortalConnected = false;

	FString HidError;



	unsigned char PortalStatus();




private:


	typedef struct {
		unsigned char buf[rw_buf_size]; int BytesTransferred;
	} RWBlock;


	static void Sleep(int sleepMs);

	void ActivatePortal(int active);

	void RestartPortal();


	// Block/byte related data write/read functions
	bool OpenPortalHandle();
	bool ReadBlock(unsigned int block, unsigned char data[0x10], int skylander);
	bool WriteBlock(unsigned int, unsigned char[0x10], int);
	bool CheckResponse(RWBlock*, char);
	void Write(RWBlock*);


protected:

	//Constants
	const int VendorIds[4] = { 0x12ba, 0x54c, 0x1430, 0x1430 };
	const int ProductIds[4] = { 0x150, 0x967, 0x1f17 };



	/////Defaults values, should not be used
	//const int VendorId = 5168;
	//const int ProductId = 336;
};